New Anti-Tuberculosis Drugs with Novel Mechanisms of Action

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It is estimated that a third of the world's population is currently infected with tuberculosis, leading to 1.6 million deaths annually. The current drug regimen is 40 years old and takes 6-9 months to administer. In addition, the emergence of drug resistant strains and HIV co-infection mean that there is an urgent need for new anti-tuberculosis drugs. The twenty-first century has seen a revival in research and development activity in this area, with several new drug candidates entering clinical trials. This review considers new potential firstline anti-tuberculosis drug candidates, in particular those with novel mechanisms of action, as these are most likely to prove effective against resistant strains. A brief overview of current first-line and recent drugs (such as fluoroquinolones, rifampicin and isoniazid analogues) is initially presented. This is followed by a description of structure-activity relationships, in vitro and in vivo activity, pharmacokinetics, mechanism of action, combination regimens and clinical trials of the new drug candidates SQ109, PA-824, OPC-67683, TMC207 and others.

Keywords: Mycobacterium tuberculosis; OPC-67683; PA-824; SQ109; TMC207/R207910; drug action

Document Type: Research Article


Affiliations: Western Australian Biomedical Research Institute, School of Pharmacy and School of Biomedical Sciences, Curtin University of Technology, GPO Box U1987, Perth WA 6845, Australia.

Publication date: August 1, 2008

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  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.
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